Refrigerator



Jan. 22, 1929.

E. L. BARNES REFRIGERATOR Patented Jan. 22,1929.

UNITED STATES 1,699,681 PATENT OFFICE.

EUGENE L. BARNES, OF WATERTOWN, NEW YORK, ASSIGNOR T0 THE BARBER AS- PHALT COMPANY, 0F PHILADELPHIA, PENNSYLVANIA, A CORPORATION OF 'WEST VIRGINIA.

BEFBIGEBATOB.

This invention pertains to certain improvements in refrigerating machines, and more specically the invention relates to a combined compresser, condenser, separator and lubricant chamber, together with driving motor and fan or fans for cooling the condenser, all arrangedin compact space and supported from a single base so as to form a unitary article, and in which the condenser extends across the top and down one side of the structure so as to constitute a protective covering and guard for the apparatus.

YOther objects and advantages relate to the details of the structure and the arrangement and connection of the parts thereof, all as will more fully appear from the following description, taken in connection with the accompanylng drawings, 1n which u Figure 41 1s a front elevation of the machine, portions of which are shown in section.

Figure 2 is an end elevation of the same looking from right to left of Figure 1.

Figure 3 is a top plan view with portions of the condenser pipe broken away and other portions of the apparatus shown in section.

The structure as shown, comprises a base of substantially rectangular form, and

having legs 2 at its four corners `formed with inwardly flanged bottom ortions -3- adapted to rest upon any suita le support.

The entire apparatus about to be described is carried upon this base which has a horizontal substantially flat top wall to which the motor and compressor 5 are secured in any suitable manner, as b bolts. rIhe motor and compressor preferab y have their shafts extending from front to rear of the machine, and the shafts are substantially parallel, and as shown, are spaced apart a distance capable of receiving a separating chamber -6-. This separating chamber may, as shown, be of elongated substantially cylindrical form having its axis extending at substantially right angles to the axis of the compressor, altho other suitable arrangementmay be made, and as here illustrated, the separating chamber is supported at its opposite ends upon similar uprights 7 secured to the base -1.

The condenser is a built-up structure and consists of two similar headers -8- and 9, as here illustrated formed of square tubing of a length substantially equal to the length of the base '-1-, the header 8 being positioned at the front of the machine above 9 is supported at the rear of the machine outside the pulleys and fans at a point somewhere near the level of the base -l. Both of the headers are supported from the base by means of posts which may be secured to the respective headers in any suitable manner. For the purpose of illustration, at the front of the machine, there are arranged two upright posts 10 and ll disposed at opposite ends of the base -l and terminating at their upper ends in substantially square jaws, which may be partially open at their rear sides, the Jaws being of a size to receive the square tube of the header -8 and the header and the jaw are secured together in rliiy suitable manner, as by soldering or the In this manner, the header is rigidly supported from the base -lby the vertical posts -10- and l1-. In a similar manner at the rear of the machine, and at opposite ends thereof, there are positioned two horizontally extending posts 50 and 5lthreaded into or otherwise rigidly secured to the base, and terminating in square jaws which may be partially open at their upper sides, which jaws are of a size adapted to receive the square tubing which forms the header 9.

In this manner, the headers are rigidi supported from the base l-. The header 8- at its rear side is formed with a plurality of relatively small openings for the reception of the ends of two layers of tubes or pipes, as illustrated an outer layer -.l3 and an inner layer -14-, the pipes of the inner layer being staggered with respect to the pipes of the outer layer and the pipes being arranged in such a manner and soA spaced that the pipes of one layer register with and are of a width substantially equal to the spaces between the pipes of the other layer so as to form a continuous unbroken structure.

In like manner, the upper side of the header -9- is formed with a plurality of openings arranged in a manner similar to the openings in the header -8, and of an equal number, and adapted to receive the ends of the pipes constituting the inner and outer layers -13 and -14l respectively. And in order that the pipes may have one end communicating with the interior of header -8- and the opposite end communicating with the interior of header -9- with `the motor and compressor, while the header i the o nin'gs described, each pipe is bent at su stantially right angles at an intermediate point along its length, in this instance, at substantially the middle of the pipes or tubes, so that each tube has a substantiall horizontal portion extending rearwar ly from the header -8- across the topl of the base --1- and the structural parts carpipe preferably penetrating the upper wall of the chamber, and terminating at 'a point near the bottom wall thereof.

This lubricant chamber may, as shown, be in the form of an elongated cylinder closed except for the connections named and the furt er connection formed by an equalizing 'tube -25- connecting the header to the 1uried thereby, and another portion extendiig bricant chamber -23-. Further, tube vertically downwardly at the rear of the machine, and outside the pulleys and fans about to be described. Thus thecondenser is conveniently and etliciently arranged and constitutes a guard and protective covering for the structural parts of theiapparatus, and the bend in the tubes of thefcondeisr permits expansion and contraction of the tubes without injuring their connections with the header which must remain fluid-tight.

As shown, the shaft of the motor 4 is equipped with a comparatively small pulley l5- and a fan -16- is provided which may be formed integrally with the pulley or separate therefrom, and independently secured to the motor shaft, as here illustrated, for drawing or forcing air between the adjacent tubes of the condenser. In a similar manner, the shaft of compressor 5- is equipped with a comparatively large pulley -17-, the spokes of which are in the form of fan blades 18 so as to constitute the pulley a fan for forcing or drawing air between the adjacent tubes of the condenser to effect the cooling of the fluid within the condenser.

The refrigerating medium may be any one desired, but the apparatus here ydisclosed is particularly adapted for the use of ethyl chloride or a similar medium, and when the compressor -5- is in operation, the ethyl chloride gas and the lubricant are forced from the compressor through pipe -l9- into the separating chamber -6-, and preferably the pipe -19- extends a considerable distance within the separating chamber and terminates near the end opposite that at which the pipe enters, and the outlet for the compressed gas is preferably near the end of the separating chamber at which the pipe -19- enters, and is in communication with the pipe or tube 20- which leads to and discharges into the header -8.

The lubricant which settles to the bottom of the separating chamber --6- and is thereby separated from the compressed gas in like manner is discharged from the separating chamber through plpe 21 at a point near the end at which the pi -19- enters the chamber, and is conveye by pipe 21 to alubricant chamber 23 positioned beneath the top horizontal wall of the base -1- and carried at one end of the machine on the feet or anges -3 of the legs 2. The lubricant is discharged into this chambaifat a point near its upper portion, and is'e'urned to the compressor through pipe -24-the -25-- acts to equalize the pressure throughout the system.

The flow of the refrigerating medium is from the compressor through pipe -19- to the separating chamber -6-, from the separating chamber -6- through pipe 20 to the header -8-, then through the layers 13- and -14- of the tubes of the condenser to the header 9 and from this header through an outlet -26- to the cooling chambers, the refrigeratin medium being returned from the cooling c amber to the compressor through an inlet pipe -27.

Altho I have shown and described a specific construction of apparatus as illustrative of a perhaps preferred embodiment of my invention, I do not desire to restrict myself to the particular arrangement of the apparatus shown, or to the form and construction of the arts thereof, as various changes may be ma e within the scope of the appended claims.

I claim:

l. A refrigerating apparatus comprising a compressor structure and condenser tubes connected with the discharge side of said compressor extending in parallel across the top of the compressor and downwardly along one end of the latter to form a protective covering for the apparatus.

2. A refrigerating apparatus comprising a compressor structure and a condenser structure, the latter consisting of two headers and a multiplicity of pipes connecting the headers, one of the headers being positioned above one end of the compressor and the other header being positioned at the opposite end of the compressor and below the axis of the compressoi'rslilaft, and the tubes being of angular form sofas to extend from one header across the top of the compressor and downwardly along the end of the compressor to the other header.

3. A refrigerating apparatus comprising a base, a motor and a compressor mounted on the base, "and condenser tubes extending in parallel across the top of the base above the motor and compressor and down one side to substantially the level of the base, and constituting a covering for the apparatus.

4. A refrigerating apparatus comprising a base, a motor and compressor mounted on the base, driving connections between the motor and the compressor, a pair of posts extending upwardly from the base at one side, a tubular header carried by the pair of posts,l a

second pair of posts extending outwardly from the other side ofthe base, a second header carried by the second pair of posts, and a multiplicity of tubes connecting the headers.

5. A refrigerating apparatus comprising a base, a motor and a compressor mounted on the base, a condenser consisting of a multiplicity of tubes extending substantially horizontally across the top of the motor and compressor and then substantially vertically down one side of the same to constitute a guard for the apparatus.

6. A refrigerating apparatus comprising a base, a motor and a compressor mounted on the base, a condenser extending across the top ofthe base above the motor and compressor and down one side to substantially the level of the base and constituting a covering for the apparatus, a lubricant chamber, and an equalizing tube connecting the condenser to the lubricant chamber.

7. A refrigerating apparatus comprising a base, a motor and a compressor mounted on the base, a condenser extending across the top oi' the base above the motor and compressor and down one side to substantially the level of the base and constituting a covering for the apparatus, a lubricant chamber, an equalizing tube connecting the condenser to the lubricant chamber, a separating chamber, means of communication between the compressor and the separating chamber, and separate means of communication between the separating chamber and the condenser and between the separating chamber and the lubricant chamberlr 8. A refrigerating apparatus comprising an elongated rectangular base, a motor and y a compressor mounted on the base with their shafts substantially parallel and extending crosswise of the base, a fan mounted upon each of said shafts and a condenser'consisting of a header extending longitudinally of .the base at a,the front side of the latter and above the motor and compressor, a second header extending lon itudinally of the base and at the rear side o? the latter, and at substantially the elevation of the' base, and a multiplicity of tubes extending from the irstnamed header substantially horizontally across the motor and compressor and the fans mounted on the motor and com ressor shafts and then downwardy outside t e fans to the` second-named header.

9. A refrigerating apparatus comprising an elongated rectangular base, a motor and a compressormounted on the base with their shafts substantially parallel and extending 'crosswise of the base, a fan mounted upon each of said shafts and a condenser consisting of a header extending longitudinally of the base at the front side of the latter and above the motor and compressor, a second header extending longitudinally of the base and at the rear side of the latter and at substantially the elevation of the base, a multiplicity of tubes extending from the firstnamed header substantially horizontally across the motor and compressor and the fans mounted on the motor and compressor shafts and then downwardly outside the fans to the second-named header, and separate ilpeans for supporting the headers from the ase.

l0. A refrigerating apparatus comprising a base, a motor and compressor mounted on motor and the compressor, a tubular header, means extending upwardly from the base at one side for supporting said header, a second header, means extending outwardly from the base at the opposite side for supporting lthe base, driving connections between the the second header, and a multiplicity of tubes 4 connecting the headers.

11. A refrigerating apparatus comprising a base, a motor and compressor mounted on the base, driving connections between the motor and the compressor, a tubular header, means extending upwardly from the base at one side for supporting said header, a second header, means extendin outwardly from the base at the opposite si e for supporting the second hea'der, and a multiplicity of separate tubes having portions extending across the base and then along one end of themotor and compressor and connecting the headers.

l2. A regenerator for a refrigerating system comprising a motor and a compressor driven thereby, and a condenser connected with the discharge lside of said compressor and comprising a multiplicity of bent tubes with upright legs behind said motor and compressor and horizontal legs overlying them.

13. A regenerator :for a refrigerating system comprlsing a motor and a compressor driven thereb and a condenser connected with the discldarge side of said compressor and comprisin said motor an header behind them, with a multiplicity of tubes connected in parallel between said headers, over and behind said motor and compressor. y

In witness whereof I have hereunto set myv hand, this 12th day of May, 1925. e

an upper front header above compressor and a lower rear 

